4 objects moving and dancing at very high altitude. shiney, reflective orbesNoticed up to 4 reflections of light at an extremely high altitude, flying around each other, would appear and disappear into the atmosphere. Traveled across sky at high rate of speed, then would disappear again and reappear in their previous position within seconds. Sky was clear, no cloud cover, to high for planes or birds, moved to fast for satellite, which don't fly and dance around in sky as these did. Although no cloud cover the atmosphere appeared to separate around the objects. The sky wad a slight shade darker blue around them.